Home / 11,218.96-15,479.40-6,968.08

Finding the Fourth Proportional to 11,218.96, 15,479.40 and 6,968.08

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Solution

The fourth proportional to 11,218.96, 15,479.40 and 6,968.08 is: 9,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.96 : 15,479.40 = 6,968.08 : x
  2. Step 2: Convert to fraction form
    11,218.96/15,479.40 = 6,968.08/x
  3. Step 3: Cross multiply
    11,218.96x = 15,479.40 × 6,968.08
  4. Step 4: Simplify right side
    11,218.96x = 107,861,697.55
  5. Step 5: Solve for x
    x = 107,861,697.55/11,218.96
  6. Step 6: Final answer
    x = 9,614.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.